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contrast and edge

Comparison of Medical Image Fusion Algorithm for Preserving the Edge Information Based On Improved Wavelet Coefficient Contrast

Comparison of Medical Image Fusion Algorithm for Preserving the Edge Information Based On Improved Wavelet Coefficient Contrast

... We have compared the results of their above methods and can be concluded that each method has its own application and use, which depends upon the requirement of fused image. In image fusion techniques, contrast ...

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Edge enhancement via phase contrast filtering:  A new technique.

Edge enhancement via phase contrast filtering: A new technique.

... 'phase contrast filtering' ...its edge enhancement capabilities and to develop a method for the design of two-dimensional (2-D) recursive digital filters to meet the specifications of the PCF ...

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Edge and contrast preserving in total variation image denoising

Edge and contrast preserving in total variation image denoising

... the contrast loss in the ...of contrast in the original TV regularization model, and then propose a forward-backward diffusion model in the framework of total variation, which can effectively preserve the ...

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Remote sensing derived edge location, magnitude, and class transitions for ecological studies

Remote sensing derived edge location, magnitude, and class transitions for ecological studies

... of edge contrast and orientation were then resampled back to the original input resolution of 30 m using the same ...wombling contrast values into ...cell’s edge contrast was in one of ...

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IMPLEMENTATION OF THE CONTRAST ENHANCEMENT AND WEIGHTED GUIDED IMAGE FILTERING ALGORITHM FOR EDGE PRESERVATION FOR BETTER PERCEPTION

IMPLEMENTATION OF THE CONTRAST ENHANCEMENT AND WEIGHTED GUIDED IMAGE FILTERING ALGORITHM FOR EDGE PRESERVATION FOR BETTER PERCEPTION

... Pierre Charbonnier, Laure Blanc-Feraud, Gilles Aubert, and Michel Barlaud [1] proposed an algorithm, called ARTUR, to avoid problems that are ill posed and must be regularized. Usually, a roughness penalty is imposed on ...

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Edge Contrast of the FLAIR Hyperintense Region Predicts Survival in Patients with High Grade Gliomas following Treatment with Bevacizumab

Edge Contrast of the FLAIR Hyperintense Region Predicts Survival in Patients with High Grade Gliomas following Treatment with Bevacizumab

... 3D edge extrac- tion may increase the level of precision and the reliability of FLAIR border pattern assessment relative to visual ratings used in previous ...

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A REVIEW STUDY ON  BRAIN TUMOUR DETECTION USING MRI IMAGES

A REVIEW STUDY ON BRAIN TUMOUR DETECTION USING MRI IMAGES

... MRI pictures are best appropriate for tumor detection. In this study Digital Image processing Techniques are necessary for tumor detection by MRI pictures. The preprocessing techniques include completely different ways ...

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The perceptual contrast of impossible shadow edges

The perceptual contrast of impossible shadow edges

... perceptual contrast of shadows ...perceptual contrast of a luminance edge shrinks when the edge appears as an illumination rather than a reflectance ...its edge will also be perceived ...

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Fuzzy Logic based watermarking using non – blind HVS technique

Fuzzy Logic based watermarking using non – blind HVS technique

... based on Human Visual System (HVS) and Fuzzy Inference System (FIS) with Discrete Cosine transform (DCT). The image transformed is segmented into 8 × 8 non over-lapping blocks and for each block parameters such as ...

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Medical image enhancement using threshold decomposition driven adaptive morphological filter

Medical image enhancement using threshold decomposition driven adaptive morphological filter

... low contrast medical image to produce a stack of binary ...possible edge directions as described in section ...the contrast in the region and direction of the de- tected edges with the aid of a flat ...

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Two Stage Fingerprint Image Enhancement Algorithm by Anisotropic Diffusion

Two Stage Fingerprint Image Enhancement Algorithm by Anisotropic Diffusion

... enhancement anisotropic diffusion in [3] and the contrast enhancement using modified edge enhancement anisotropic diffusion proposed by Zhang in [8] are described, respectively. Finally, to clearly present ...

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Finite State Machine Approach To Electronic Equipment Design

Finite State Machine Approach To Electronic Equipment Design

... FSM (Finite State Machine) In a Finite State Machine the circuit’s output is defined in a different set of states i.e. each output is a state. A State Register to hold the state of the machine and a next state logic to ...

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International Journal of Computer Science and Mobile Computing

International Journal of Computer Science and Mobile Computing

... namely edge adaptive sigma filter to enhance the contrast of a given ...an edge detector and converted into a binary ...an edge, a high pass filter mask is applied to sharpen the ...an ...

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Robust Degraded Document Image Binarization Using Filter

Robust Degraded Document Image Binarization Using Filter

... constructed contrast image has a clear bi-modal pattern where the adaptive image contrast computed at text stroke edges is obviously larger than that computed within the document ...stroke edge pixel ...

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Study the Quality of Image Enhancement by using Retinex Technique which Capture by different Lighting (Sun and Tungsten)

Study the Quality of Image Enhancement by using Retinex Technique which Capture by different Lighting (Sun and Tungsten)

... mean contrast ( depend on edge of image , and the statistical properties ( ,, contrast ) for images enhancement are to maintain the general attributes of statistical properties of image with ...

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Improving Degraded Document Images Using Binarization Technique

Improving Degraded Document Images Using Binarization Technique

... image contrast based document image binarization technique that is tolerant to different type of document degradation such as uneven illumination document smear involving smudging of text, seeping of ink to the ...

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Path-tables of trees: a survey and some new results

Path-tables of trees: a survey and some new results

... through edge 𝑥𝑦 can only be expressed in terms of paths passing through vertices 𝑥 and 𝑦 up to a length of ...In contrast to the vertex path-table, we show that the row of the edge path-table ...

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AN IMPROVED BINARIZATION TECHNIQUE FOR DEGRADED DOCUMENT IMAGES USING LOCAL THRESHOLDING METHOD

AN IMPROVED BINARIZATION TECHNIQUE FOR DEGRADED DOCUMENT IMAGES USING LOCAL THRESHOLDING METHOD

... The performance of our proposed method can be finer due to several factors. First, the proposed method applies preprocessing to remove the noise or fining the image which is degraded due to illumination and old age ...

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MEDICAL IMAGE ENHANCEMENT USING HARDWARE DESCRIPTION LANGUAGE

MEDICAL IMAGE ENHANCEMENT USING HARDWARE DESCRIPTION LANGUAGE

... This project presents the enhancement of X-ray images which helps medical specialists for diagnosis. Sometimes the x-ray images are distorted by noise, illumination variations which may occur during acquisition. The ...

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Restoration of degraded documents using image binarization technique

Restoration of degraded documents using image binarization technique

... adaptive contrast map is first constructed for a given degraded document image and the text stroke edges are then detected through the combination of the binarized adaptive contrast map and the canny ...

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